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Preparation method and application of super-hydrophobic/super-lipophilic material in oil-water separation field

A super-oleophilic and super-hydrophobic technology, applied in the direction of liquid separation, separation methods, chemical instruments and methods, etc., can solve the problems of low efficiency and high cost of adsorbing organic matter, and achieve the goal of increasing energy utilization rate, small specific gravity and improving ecological environment Effect

Inactive Publication Date: 2011-11-02
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the existing technical problems of low efficiency and high cost of absorbing organic substances for oil-water separation, and provides a preparation method of a superhydrophobic / super-oleophilic material and its application in the field of oil-water separation

Method used

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  • Preparation method and application of super-hydrophobic/super-lipophilic material in oil-water separation field
  • Preparation method and application of super-hydrophobic/super-lipophilic material in oil-water separation field

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specific Embodiment approach 1

[0009] Specific embodiment one: the preparation method of a kind of superhydrophobic / super lipophilic material of the present embodiment is carried out according to the following steps: one, according to CrO 3 The concentration of sulfuric acid with a concentration of 50g / L~150g / L and a mass percent concentration of 98% is 50g / L~150g / L. Weigh CrO 3 And the sulfuric acid that mass percent concentration is 98% and joins in water, mixes evenly, obtains coarse liquid; Two, press SnCl 2 The concentration of hydrochloric acid with a concentration of 20g / L~60g / L and a mass percent concentration of 37% is 1mL / L~100mL / L. Weigh SnCl 2 And mass percent concentration is 37% hydrochloric acid and joins in water, mixes evenly, obtains sensitization liquid; Three, press AgNO 3 The concentration of ammonia water with a concentration of 5g / L~15g / L and a mass percent concentration of 25% is 5mL / L~20mL / L. Weigh the AgNO 3 Add ammonia water with a mass percentage concentration of 25% into water...

specific Embodiment approach 2

[0012] Embodiment 2: This embodiment is different from Embodiment 1 in that: in step 4, the matrix is ​​polyurethane sponge, silk, wood, rubber, cotton, hemp or paper fiber. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0013] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that in step 5, the method of copper plating on the surface of the substrate is electroless copper plating or electroplating copper, and the method of galvanizing the surface of the substrate is electrogalvanization. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a preparation method and application of a super-hydrophobic / super-lipophilic material in oil-water separation field, involving the preparation method and application of an oil / water separation material. In the invention, the technical problems that the existing oil-water separation materials have low organic matter adsorption efficiency and high cost can be solved. The preparation method comprises the following steps of: treating a substrate with a roughening liquid, sensitizing liquid and an activating liquid in a proper order, then plating copper or zinc on the surface of the substrate, then immersing the substrate with the metal coating in an etching liquid for treatment to obtain the substrate with the rough metal layer on the surface, finally soaking the substrate in an organic solution of a fatty acid or a thiol and drying to obtain the super-hydrophobic / super-lipophilic material. The obtained super-hydrophobic / super-lipophilic material can be applied in oil-water separation, can absorb 1-40 g of organic matters per gram of the material, can be recycled repeatedly and can be used to control and treat oil pollution.

Description

technical field [0001] The invention relates to a preparation method and application of an oil / water separation method material. technical background [0002] With the rapid development of the petroleum industry, the simultaneous occurrence of oil spill accidents is also increasing, seriously endangering the natural environment and human existence. Most of the traditional oil-absorbing materials used to deal with oil spills use some original natural substances, such as hair, clay, wood, zeolite, etc. These substances generally have poor oil-absorbing ability, and absorb a large amount of water while absorbing oil, which reduces the efficiency of accident treatment . In recent years, superhydrophobic materials, which have received widespread attention, have extremely broad application prospects in national defense construction, industrial and agricultural production, and daily life. The excellent functions are of particular concern. In the 18th issue of Advance Materials i...

Claims

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Application Information

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IPC IPC(8): B05D5/08C25D5/56C23C18/20C23C18/38B29C71/00C08J7/04B01D17/022C02F1/40
Inventor 潘钦敏祝青陈宁李国瑞秦利明
Owner HARBIN INST OF TECH
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